Dr. Tau (Pennsylvania Center for Dental Excellence) is nothing but a sham. I had what he said was, "the best bridge in the market" installed at a price of over $3,000. Months afterward, the fascia of the bridge cracked and he claimed that due to my heavy griding this is typical, and he would cover a 1/3 of the replacement cost, leaving me with the balance. Are you kidding me? This guy is in only for the money and could care less about patient care. He demands payment upfront before services are complete, which not dentist on the planet does. I should have known better, but went against my keen judegement. He talks a good game by over promising and under delivering. A medical scam artist!